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Taiwan Semiconductor Corporation P6KE170CH
- Part No.:
- P6KE170CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE170CH.pdf
- Description:
- 600W, 170V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,938
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Product details
Overview
P6KE170CH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for robust overvoltage protection in DC power rails and signal lines. It features a 170V nominal breakdown voltage (VBR min/max: 153V–187V), 138V standoff voltage (VWM), clamps to ≤244V at 2.5A peak surge current, and delivers sub-nanosecond response time (<1.0ps from 0V to VBR). It is AEC-Q101 qualified and housed in a DO-204AC (DO-15) package for automotive and industrial power supply protection.
For engineers reviewing the P6KE170CH datasheet, P6KE170CH pinout, P6KE170CH application, or P6KE170CH equivalent, key selection criteria include its AEC-Q101 qualification, 138V working voltage, 244V clamping limit at 2.5A, DO-15 mechanical compatibility, and suitability for 12/24/48V system rail protection against ISO 7637-2 pulses and EFT bursts.
Technical Context
The P6KE170CH operates as a unidirectional avalanche diode with sharp reverse-breakdown characteristics, optimized for clamping fast transients such as load dump, inductive switching spikes, and ESD events. Its low dynamic impedance ensures minimal voltage overshoot during 10/1000μs surges up to 600W, while its <1.0ps response enables protection of sensitive downstream ICs like microcontrollers and CAN transceivers.
It is rated for junction temperatures from –55°C to +175°C, supports 100A non-repetitive forward surge (IFSM), and exhibits <1μA reverse leakage above 10V. The device uses pure tin-plated leads compliant with J-STD-002 and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 138 V - Maximum continuous DC operating voltage before conduction begins; defines safe steady-state rail margin. |
| VBR (min/max) | 153 V / 187 V - Breakdown occurs within this range at 1 mA test current; ensures predictable clamping onset. |
| VC @ IPP | 244 V @ 2.5 A - Clamped voltage during 10/1000μs surge; determines maximum stress on protected circuitry. |
| PPK | 600 W - Peak pulse power handling per 10/1000μs waveform; defines transient energy absorption capacity. |
| TJ max | +175 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Package | DO-204AC (DO-15) - Standard axial-leaded through-hole package with 0.400 g mass; compatible with legacy PCB layouts. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, glass-passivated, cathode-banded end. Cathode band denotes the terminal connected to the P-side (anode is unmarked lead). Designed for through-hole mounting with 5×5 mm copper pads per lead for thermal derating compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked lead) | Current entry point during forward conduction | Connected to ground or low-side return path in unidirectional TVS configuration. |
| Cathode (banded lead) | Current exit point during reverse clamping | Connected to protected line (e.g., 24V rail); clamps transients toward ground when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics requiring extended temperature and reliability assurance. |
| 600W 10/1000μs surge rating | Withstands high-energy transients such as ISO 7637-2 Pulse 5a (load dump) without degradation. |
| Clamping voltage ≤244V at 2.5A | Ensures protected 24V/48V systems remain below 250V stress threshold during surge events. |
| Response time <1.0ps | Activates before most semiconductor damage mechanisms initiate, enabling effective protection of fast logic and analog inputs. |
| UL 94V-0 molding compound | Meets flame-retardant safety requirements for enclosed automotive and industrial enclosures. |
Applications
| Automotive Power Rail Protection | Industrial DC Power Input |
|---|---|
Use Scenario: Protecting 24V battery-fed ECUs from load dump transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and ground to clamp surges >138V. Use Value: Limits peak voltage to ≤244V, preventing damage to 36V-rated regulators and CAN transceivers. | Use Scenario: Safeguarding programmable logic controllers (PLCs) against inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Standoff protection on 48V DC input stage prior to DC-DC converter. Use Value: Absorbs 600W surges without failure, maintaining system uptime in factory automation environments. |
| LED Driver Overvoltage Clamp | Telecom Line Surge Suppression |
Use Scenario: Preventing catastrophic failure of constant-current LED drivers during hot-swap or cable discharge events. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output to clamp transients before reaching LED string. Use Value: Sub-ns response ensures LEDs and driver FETs experience no overvoltage exceeding 244V. | Use Scenario: Secondary-level protection on PoE-powered equipment Ethernet ports against lightning-induced surges. IC Role / Device Role / Timing Role: Back-to-back unidirectional TVS pair (with companion part) on DC bias lines. Use Value: Enables compliance with IEC 61000-4-5 Level 3 (1kV/2Ω) when combined with primary GDT protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170A | Surface-mount SMB package; same 170V nominal, but lower 600W rating applies to 10/1000μs with different thermal derating curve. | Requires PCB redesign for SMT placement; better suited for space-constrained designs where reflow compatibility is critical. | Select SMBJ170A only if board layout allows SMT integration and thermal management supports SMB footprint. |
| 1.5KE170A | Same DO-15 package and 170V rating, but 1500W peak power (1.5kW) and higher clamping voltage (258V @ 5.8A). | Higher energy handling suits infrequent, high-amplitude surges (e.g., lightning coupling), but less precise clamping for sensitive 24V logic. | Choose 1.5KE170A when surge amplitude exceeds 600W expectations and clamping voltage margin permits ≥258V. |
Compared with SMBJ170A and 1.5KE170A, the P6KE170CH offers AEC-Q101 qualification and tighter clamping (244V vs. 258V) in a proven through-hole package-making it optimal for cost-sensitive, high-reliability automotive and industrial power rail protection where layout stability and qualification traceability are mandatory.
Availability
P6KE170CH is available at Aetrix Electronics and suitable for automotive ECU power conditioning, industrial PLC input protection, and LED driver overvoltage safeguarding requiring stable component supply across multi-year production cycles.
Supply support for P6KE170CH includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated Taiwanese manufacturer specializing in discrete semiconductors, including TVS diodes, rectifiers, and MOSFETs, with global distribution and AEC-Q101 certification capability.
The P6KE series targets cost-effective, high-reliability transient suppression in automotive and industrial power systems-designed specifically to meet ISO 7637-2, IEC 61000-4-4, and AEC-Q101 requirements without premium packaging.
FAQ
What is the clamping voltage of the P6KE170CH and how is it measured?
The P6KE170CH has a maximum clamping voltage (VC) of 244 V at a peak pulse current (IPP) of 2.5 A, tested using the standardized 10/1000 μs double-exponential surge waveform. This value represents the highest voltage the device allows across its terminals during a transient event, ensuring downstream components see no more than 244 V even under full-rated surge conditions. The P6KE170CH maintains this clamping performance across its qualified operating temperature range.
Is the P6KE170CH suitable for automotive applications?
Yes, the P6KE170CH is explicitly AEC-Q101 qualified (denoted by the "H" suffix), having passed stress tests including high-temperature reverse bias, temperature cycling, and ESD per the AEC standard. Its –55°C to +175°C junction temperature range, DO-15 mechanical robustness, and 600W surge capability make it appropriate for under-hood and chassis-mounted automotive modules such as body control units and lighting drivers. The P6KE170CH is listed in TSC's AEC-Q101 product documentation.
How does the P6KE170CH differ from the P6KE170A variant?
The P6KE170CH is the AEC-Q101 qualified version with tighter parameter tolerances and extended reliability validation, whereas the P6KE170A is the commercial-grade variant without automotive qualification. Specifically, the P6KE170CH guarantees VBR between 153 V and 187 V at 1 mA, while the P6KE170A specifies 162 V to 179 V. Both share identical DO-204AC packaging and 244 V clamping, but only the P6KE170CH carries the AEC-Q101 certification required for automotive production.
What is the maximum steady-state power dissipation for the P6KE170CH?
The P6KE170CH has a steady-state power dissipation (PD) rating of 5 W at an ambient temperature of 75°C, measured with 0.375-inch (9.5 mm) lead lengths mounted on 5 × 5 mm copper pads per terminal. This rating reflects continuous DC power handling-not surge capability-and is thermally limited by package construction and PCB copper area. For reliable long-term operation, designers must ensure board layout provides adequate heat sinking per the derating curve in the P6KE170CH datasheet.
Can the P6KE170CH be used in bidirectional configurations?
No, the P6KE170CH is a unidirectional TVS diode, indicated by the "CH" suffix and cathode band marking. It conducts only in reverse breakdown (cathode to anode) and blocks forward current like a standard diode. For bidirectional protection, a separate CA-suffixed part (e.g., P6KE170CA) or back-to-back unidirectional devices would be required. Using the P6KE170CH in AC or bipolar signal paths without proper polarity alignment will result in unintended forward conduction or failure to clamp.
P6KE170CH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 138V
- Voltage - Breakdown (Min):
- 153V
- Voltage - Clamping (Max) @ Ipp:
- 244V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE170CH FAQ
1.How can I place an order for P6KE170CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE170CH on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P6KE170CH reliable?
The price and inventory of P6KE170CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE170CH is usually 5 days.
3.What payment methods are accepted for P6KE170CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE170CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE170CH?
P6KE170CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE170CH order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P6KE170CH?
For technical support, including P6KE170CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE170CH requirements.
6.How does Aetrix verify that P6KE170CH is sourced from the original manufacturer or authorized distributors?
All P6KE170CH products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P6KE170CH meets industry standards.
7.What is the process for return or replacement of P6KE170CH?
All P6KE170CH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE170CH, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P6KE170CH part is unused and in its original packaging.
Return procedure for P6KE170CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE170CH Tags
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